CN103604592A - Engine piston heat-mechanical load coupling fatigue test system - Google Patents
Engine piston heat-mechanical load coupling fatigue test system Download PDFInfo
- Publication number
- CN103604592A CN103604592A CN201310576387.0A CN201310576387A CN103604592A CN 103604592 A CN103604592 A CN 103604592A CN 201310576387 A CN201310576387 A CN 201310576387A CN 103604592 A CN103604592 A CN 103604592A
- Authority
- CN
- China
- Prior art keywords
- high pressure
- piston
- pipeline
- induction heating
- frequency induction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to an engine piston heat-mechanical load coupling fatigue test system comprising a piston, a bottom plate, a side plate, a top plate, a pipeline, a high pressure air bottle, a high frequency induction heating machine, a motion device, a cooling device, a gas exhausting and voltage stabilizing device and a control device which comprises a controller and a computer. The piston is connected with the motion device via a piston pin. A reciprocating inertia force borne by the piston is provided by the motion device. A high temperature and high pressure gas effect cavity is formed in a relatively enclosed space among the top part, the side plate and the top plate of the piston. The cavity is connected with the high pressure air bottle via the pipeline. The high frequency induction heating machine heats the pipeline, and cooling of the piston is realized by the cooling device. An engine combustion chamber is simulated via the high temperature and high pressure gas effect cavity, wherein high temperature and high pressure combustion gas in an engine cylinder is simulated by high temperature and high pressure gas. Inflation and deflation of high pressure gas, on/off of the high frequency induction heating machine and start/stop of the motion device are controlled via the same controller so that inflation and deflation of high pressure gas, on/off of the high frequency induction heating machine and start/stop of the motion device are synchronously controlled.
Description
Technical field
The present invention relates to a kind of engine piston heat-mechanical load fatigue test system, belong to engine torture test field.
Background technology
High power density engine is the inexorable trend of development of engine.High power density engine can significantly reduce the volume of automotive power, increases the maneuverability of vehicle, thereby is all having wide practical use aspect civilian and national defence.And piston is the core component of engine, in engine working process, piston is not only bearing very high thermal load, is also bearing very high mechanical load, and working environment is extremely severe.Particularly, in high power density engine, existing high heat load and high explosion pressure can shorten the life-span of engine piston, thereby cause the shortening of service life of aeroengine.Therefore, the development inevitable requirement of high power density engine solves the problem of the lost of life of piston under this high heat load and high explosion pressure environment.This just need to be in the design phase to examining the fatigue lifetime of the engine piston under the coupling of heat-mechanical load.
In prior art, the torture test of engine piston is the stress state under thermal load or mechanical load effect by simulation piston normally, analyzes the Fatigue Failure Process of piston, and then the fatigue lifetime of prediction piston.The fatigue test board of current existing engine piston is all the effect of only having considered thermal load or mechanical load.In fact, what engine piston was subject to is the combined action of thermal load, explosion pressure and reciprocal inertia force, if only separately Thermal Load or mechanical load will be difficult to the stress state of accurate evaluation piston and the fatigue lifetime of prediction piston.Prior art not for above-mentioned several impacts to engine piston heat-mechanical load fatigue test system.
Summary of the invention
The object of the invention is to overcome the deficiency of existing engine piston brake fatigue test rack, a kind of thermal load and the mechanical load effect that can simultaneously consider engine piston is provided, that is, consider that the coupling of engine piston heat-mechanical load is to predict more accurately the fatigue test system in piston fatigue life-span.
The present invention realizes by the following technical solutions:
The invention provides a kind of engine piston heat-mechanical load fatigue test system, comprise piston, base plate, side plate, top board, pipeline, high pressure air bottle, high-frequency induction heating machine, telecontrol equipment, cooling device, exhaust stable-pressure device and comprise controller and the control device of computing machine, totally 3 of pipelines in the present invention, wherein:
Relatively airtight space between the bottom of piston, side plate and base plate forms cooling oil chamber;
Article one, pipeline is called pipeline 1, is provided with reduction valve, decompression table, solenoid valve I, tensimeter I and thermometer above;
Second pipeline is called pipeline 2, is provided with solenoid valve II, tensimeter II above;
Article three, pipeline is called pipeline 3, is provided with solenoid valve III, tensimeter III above;
Exhaust stable-pressure device comprises exhaust pressure stabilizing cavity I and exhaust pressure stabilizing cavity II;
Cooling device comprises cooling oil box and oil pump;
Telecontrol equipment comprises linear electric motors and driver;
A kind of specific design scheme of engine piston heat-mechanical load fatigue test system is as follows:
Piston is placed in the inside of main body, by piston pin, is connected with telecontrol equipment;
Relatively airtight space between the top of piston, side plate and top board forms high temperature and high pressure gas acting chamber, this chamber is connected with high pressure air bottle by pipeline, high-frequency induction heating machine is near the pipeline 1 that connects high temperature and high pressure gas acting chamber and high pressure air bottle, high-frequency induction heating machine is connected with the controller in control device, and high pressure air bottle is connected with control device controller via the solenoid valve I on pipeline 1;
Top board and side plate, base plate and side plate can be bolted;
High pressure air bottle is connected with the air intake opening of high temperature and high pressure gas acting chamber by pipeline 1, and the solenoid valve I on pipeline 1 is connected with controller by circuit;
Two gas outlets of the high temperature and high pressure gas acting chamber in exhaust stable-pressure device are connected with exhaust pressure stabilizing cavity I, exhaust pressure stabilizing cavity II respectively by pipeline 2, pipeline 3, and solenoid valve II is connected with controller by circuit respectively with solenoid valve III;
High-frequency induction heating machine directly add hot tie-in high temperature and high pressure gas acting chamber and high pressure air bottle pipeline at least near the part of high temperature and high pressure gas acting chamber;
The reciprocal inertia force that piston bears is provided by telecontrol equipment, linear electric motors in telecontrol equipment are directly connected to piston by piston pin, driver in telecontrol equipment is connected with the controller in control device and the motion module programmed control in controller, and driver startup rear drive linear electric motors operation and then driven plunger realize the to-and-fro movement of piston;
Cold oil in cooling device in cooling oil box sprays into cooling oil chamber via the cooling-oil inlet on base plate under the driving of oil pump, and then the cooling-oil outlet from base plate is carried and turned back to cooling oil box by flowline, and realization is cooling to piston;
Gases at high pressure in high pressure air bottle through reduction valve by Pressure Drop to explosion pressure, when carrying in pipeline 1, heats through high-frequency induction heating machine post-decompression gas, pressure and temperature rises to designated value, solenoid valve I is opened, high temperature and high pressure gas through heating and after boosting enters high temperature and high pressure gas acting chamber, and then interacts with reciprocating piston.
The coil of the high-frequency induction heating machine in the present invention directly add hot tie-in high temperature and high pressure gas acting chamber and high pressure air bottle pipeline 1 at least near the part of high temperature and high pressure gas acting chamber, the switch of high-frequency induction heating machine is connected with controller.
Control device in the present invention can carry out synchro control to high pressure air bottle, high-frequency induction heating machine and telecontrol equipment three.
Beneficial effect
Accurate reproduction of the present invention the tired situation of engine piston while simultaneously bearing heat-mechanical load, to the examination of the fatigue lifetime of the engine piston under the coupling of heat-mechanical load, provide rational examination environment, thereby for the optimal design of piston and provide foundation with mating of complete machine, and provide test data support can judge fast the accuracy of numerical result for the numerical evaluation of piston.
The present invention has filled up and the piston of engine has been carried out the blank of heat-mechanical load fatigue test both at home and abroad, for the research and development of piston provide test figure accurately, can significantly reduce the R&D costs of piston and the efficiency of research and development of raising piston, so the present invention will be used widely and will produce huge economic benefit.
Accompanying drawing explanation
Fig. 1 is the structural representation of engine piston heat-mechanical load fatigue test system of the present invention;
Embodiment
Below in conjunction with concrete drawings and Examples, technical scheme of the present invention is described further.
As shown in Figure 1, engine piston heat-mechanical load fatigue test system ingredient of the present invention comprises: 1. cooling oil box, 2. oil pump, 3. cooling-oil inlet, 4. base plate, 5. bolt I, 6. side plate, 7. controller, 8. computing machine, 9. bolt II, 10. solenoid valve I, 11. top boards, 12. tensimeter I, 13. pipelines 2, 14. tensimeter II, 15. solenoid valve II, 16. exhaust pressure stabilizing cavity I, 17. decompression tables, 18. reduction valve, 19. high pressure air bottles, 20. pipelines 1, 21. high-frequency induction heating machines, 22. exhaust pressure stabilizing cavity II, 23. solenoid valve III, 24. tensimeter III, 25. pipelines 3, 26. bolt III, 27. thermometers, 28. high temperature and high pressure gas acting chambers, 29. pistons, 30. piston pins, 31. cooling oil chambers, 32. bolt IV, 33. cooling-oil outlets, 34. linear electric motors, 35. drivers.
In preferred implementation as shown in Figure 1, engine piston heat-mechanical load fatigue test system of the present invention comprises piston (29), the main body being formed by base plate (4), side plate (6) and top board (11), high pressure air bottle (19), high-frequency induction heating machine (21), telecontrol equipment, cooling device, exhaust stable-pressure device and comprises controller (7) and the control device of computing machine (8).
Piston (29) is placed in the inside of main body, by piston pin (30), is connected with telecontrol equipment.Relatively airtight space between the bottom of piston (29), side plate (6) and base plate (4) forms a cooling oil chamber (31).Relatively airtight space between the top of piston (29), side plate (6) and top board (11) forms a high temperature and high pressure gas acting chamber (28), this chamber (28) firing chamber of simulated engine in torture test.This high temperature and high pressure gas acting chamber (28) is connected with high pressure air bottle (19) by pipeline 1 (20), high-frequency induction heating machine (21) arranges near this pipeline that connects high temperature and high pressure gas acting chamber (28) and high pressure air bottle (19), high-frequency induction heating machine (21) can be connected with controller 7, and high pressure air bottle (19) can be connected with controller (7) via solenoid valve I (10).
High pressure air bottle in the present invention (19) is connected with the air intake opening of high temperature and high pressure gas acting chamber (28) by pipeline 1 (20), described pipeline is provided with reduction valve (18), decompression table (17), solenoid valve I (10), tensimeter I (12) and thermometer (27), and solenoid valve I (10) is connected with controller (7) by circuit.
Exhaust stable-pressure device comprises exhaust pressure stabilizing cavity I (16) and exhaust pressure stabilizing cavity II (22).Two gas outlets of high temperature and high pressure gas acting chamber (28) are connected with exhaust pressure stabilizing cavity I (16), exhaust pressure stabilizing cavity II (22) respectively by pipeline 2 (13), pipeline 3 (25), on pipeline 2 (13) and pipeline 3 (25), be respectively equipped with solenoid valve II (15), tensimeter II (14) and solenoid valve III (23), tensimeter III (24), solenoid valve II (15) is connected with controller (7) by circuit respectively with solenoid valve III (23).
The coil of the high-frequency induction heating machine (21) in the present invention directly add hot tie-in high temperature and high pressure gas acting chamber (28) and high pressure air bottle (19) pipeline at least near the part of high temperature and high pressure gas acting chamber (28).The switch of this high-frequency induction heating machine (21) can be connected with controller (7).Telecontrol equipment comprises linear electric motors (34) and driver (35), and linear electric motors (34) are directly connected to piston (29) by piston pin (30), and driver (35) is connected with controller (7).
The reciprocal inertia force that piston in the present invention (29) bears is provided by telecontrol equipment.In torture test process, driver (35) is subject to the control of the motion module program in controller (7) and starts, and linear electric motors (34) move under the driving of driver (35) and direct driven plunger (29) realizes the to-and-fro movement of piston (29).
Cooling device comprises cooling oil box (1) and oil pump (2).In torture test process, cold oil in cooling oil box (1) is carried by oil inlet pipe and is sprayed into cooling oil chamber (31) by the cooling-oil inlet (3) on base plate (4) under the effect of oil pump (2), and then the cooling-oil outlet (33) from base plate (4) is carried and turned back to cooling oil box (1) by flowline.This circulation by cold oil realizes cooling to piston (29).
The top board and side plate, base plate and the side plate that in the present invention, form main body can be bolted, as shown in fig. 1, top board (11) can be connected with bolt III (26) by bolt II (9) with side plate (6), and base plate (4) can be connected with bolt IV (32) by bolt I (5) with side plate (6).。
Computing machine in the present invention and controller are existing equipment, are not described in detail in this.
The present invention is by the high-temperature high-pressure fuel gas in the high temperature and high pressure gas simulated engine cylinder in high temperature and high pressure gas acting chamber (28).In torture test, gases at high pressure in high pressure air bottle (19) first pass through reduction valve (18) by Pressure Drop to explosion pressure, after post-decompression gas, by pipeline 1, carry and pass through the coil heats of high-frequency induction heating machine (21), in pipeline 1, the pressure and temperature of heated gas rises to designated value, now solenoid valve I (10) is opened, high temperature and high pressure gas enters high temperature and high pressure gas acting chamber (28), high temperature and high pressure gas in high temperature and high pressure gas acting chamber (28) and reciprocating piston (29) interact, then respectively via path: pipeline 2 (13)-solenoid valve II (15)-exhaust pressure stabilizing cavity I (16) and pipeline 3 (25)-solenoid valve III (23)-exhaust pressure stabilizing cavity II (22) are discharged.
The the charging and discharging of mesohigh gas of the present invention, the switch of high-frequency induction heating machine, the start and stop of telecontrol equipment are all controlled by controller (7), and computing machine (8) can directly be connected with controller (7), thereby can carry out synchro control to three.Thus, control device synchro control high pressure air bottle, high-frequency induction heating machine and telecontrol equipment three.
Although in order to make to understand clearly object and to describe embodiment above in detail, the invention is not restricted to provided details.Disclosed embodiment is illustrative rather than restrictive.Can realize replaceable mode of the present invention and all fall into protection scope of the present invention.
Claims (2)
1. engine piston heat-mechanical load fatigue test system, comprise piston, base plate, side plate, top board, 3 pipelines, high pressure air bottle, high-frequency induction heating machine, telecontrol equipment, cooling device, exhaust stable-pressure devices and comprise controller and the control device of computing machine, it is characterized in that:
Relatively airtight space between the bottom of piston, side plate and base plate forms cooling oil chamber;
Article one, pipeline is called pipeline 1, is provided with reduction valve, decompression table, solenoid valve I, tensimeter I and thermometer above;
Second pipeline is called pipeline 2, is provided with solenoid valve II, tensimeter II above;
Article three, pipeline is called pipeline 3, is provided with solenoid valve III, tensimeter III above;
Exhaust stable-pressure device comprises exhaust pressure stabilizing cavity I and exhaust pressure stabilizing cavity II;
Cooling device comprises cooling oil box and oil pump;
Telecontrol equipment comprises linear electric motors and driver;
A kind of specific design scheme of engine piston heat-mechanical load fatigue test system is as follows:
Piston is placed in the inside of main body, by piston pin, is connected with telecontrol equipment;
Relatively airtight space between the top of piston, side plate and top board forms high temperature and high pressure gas acting chamber, this chamber is connected with high pressure air bottle by pipeline, high-frequency induction heating machine is near the pipeline 1 that connects high temperature and high pressure gas acting chamber and high pressure air bottle, high-frequency induction heating machine is connected with the controller in control device, and high pressure air bottle is connected with control device controller via the solenoid valve I on pipeline 1;
Top board and side plate, base plate and side plate can be bolted;
High pressure air bottle is connected with the air intake opening of high temperature and high pressure gas acting chamber by pipeline 1, and the solenoid valve I on pipeline 1 is connected with controller by circuit;
Two gas outlets of the high temperature and high pressure gas acting chamber in exhaust stable-pressure device are connected with exhaust pressure stabilizing cavity I, exhaust pressure stabilizing cavity II respectively by pipeline 2, pipeline 3, and solenoid valve II is connected with controller by circuit respectively with solenoid valve III;
High-frequency induction heating machine directly add hot tie-in high temperature and high pressure gas acting chamber and high pressure air bottle pipeline at least near the part of high temperature and high pressure gas acting chamber;
The reciprocal inertia force that piston bears is provided by telecontrol equipment, linear electric motors in telecontrol equipment are directly connected to piston by piston pin, driver in telecontrol equipment is connected with the controller in control device and the motion module programmed control in controller, and driver startup rear drive linear electric motors operation and then driven plunger realize the to-and-fro movement of piston;
Cold oil in cooling device in cooling oil box sprays into cooling oil chamber via the cooling-oil inlet on base plate under the driving of oil pump, and then the cooling-oil outlet from base plate is carried and turned back to cooling oil box by flowline, and realization is cooling to piston;
Gases at high pressure in high pressure air bottle through reduction valve by Pressure Drop to explosion pressure, when carrying in pipeline 1, heats through high-frequency induction heating machine post-decompression gas, pressure and temperature rises to designated value, solenoid valve I is opened, high temperature and high pressure gas through heating and after boosting enters high temperature and high pressure gas acting chamber, and then interacts with reciprocating piston;
The coil of high-frequency induction heating machine directly add hot tie-in high temperature and high pressure gas acting chamber and high pressure air bottle pipeline 1 at least near the part of high temperature and high pressure gas acting chamber, the switch of high-frequency induction heating machine is connected with controller.
2. the control device as described in right 1 can carry out synchro control to high pressure air bottle, high-frequency induction heating machine and telecontrol equipment three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576387.0A CN103604592B (en) | 2013-11-18 | 2013-11-18 | Engine piston heat-mechanical load fatigue test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576387.0A CN103604592B (en) | 2013-11-18 | 2013-11-18 | Engine piston heat-mechanical load fatigue test system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103604592A true CN103604592A (en) | 2014-02-26 |
| CN103604592B CN103604592B (en) | 2016-02-10 |
Family
ID=50122837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310576387.0A Expired - Fee Related CN103604592B (en) | 2013-11-18 | 2013-11-18 | Engine piston heat-mechanical load fatigue test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103604592B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868684A (en) * | 2014-03-17 | 2014-06-18 | 台州德尔福汽车部件有限公司 | Fatigue test device for VVT (Variable Valve Timing) engine piston |
| CN103994879A (en) * | 2014-04-18 | 2014-08-20 | 中国北方发动机研究所(天津) | Piston thermal fatigue test apparatus |
| CN103994881A (en) * | 2014-04-18 | 2014-08-20 | 中国北方发动机研究所(天津) | Piston oscillation oil chamber test simulation apparatus |
| CN104776999A (en) * | 2015-03-27 | 2015-07-15 | 中国北方发动机研究所(天津) | Mechanical fatigue test device for combined piston of engine |
| RU2560852C1 (en) * | 2014-09-25 | 2015-08-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный авиационный технический университет" | Test bench of thermal state of pistons of two-stroke internal combustion engines |
| CN105067269A (en) * | 2015-07-30 | 2015-11-18 | 湖南江滨机器（集团）有限责任公司 | Piston test apparatus |
| CN105300715A (en) * | 2015-10-26 | 2016-02-03 | 中国科学院理化技术研究所 | Regenerative heat engine performance testing device |
| CN105588721A (en) * | 2015-12-14 | 2016-05-18 | 中国北方发动机研究所(天津) | Closed heating system of heat transfer test stand for oscillating oil chamber of engine piston |
| CN110529442A (en) * | 2019-08-26 | 2019-12-03 | 哈尔滨工程大学 | Hydraulic system matched with piston machine fatigue test board |
| CN113848064A (en) * | 2021-08-17 | 2021-12-28 | 蓝箭航天技术有限公司 | Core machine test verification method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2758748Y (en) * | 2004-12-15 | 2006-02-15 | 中国科学院金属研究所 | Heater for heat machinery fatigue tester |
| CN1789963A (en) * | 2005-12-31 | 2006-06-21 | 大连海事大学 | Friction wear test method and apparatus for cylinder liner piston ring component |
| CN102052149A (en) * | 2011-01-11 | 2011-05-11 | 北京理工大学 | Passive air-inlet mode diesel linear electromagnetic energy conversion device |
| CN102116197A (en) * | 2011-01-11 | 2011-07-06 | 北京理工大学 | Linear internal combustion engine-based mixed energy conversion device |
| KR101224192B1 (en) * | 2012-04-06 | 2013-01-21 | 유종훈 | High temperature high pressure valve test device |
-
2013
- 2013-11-18 CN CN201310576387.0A patent/CN103604592B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2758748Y (en) * | 2004-12-15 | 2006-02-15 | 中国科学院金属研究所 | Heater for heat machinery fatigue tester |
| CN1789963A (en) * | 2005-12-31 | 2006-06-21 | 大连海事大学 | Friction wear test method and apparatus for cylinder liner piston ring component |
| CN102052149A (en) * | 2011-01-11 | 2011-05-11 | 北京理工大学 | Passive air-inlet mode diesel linear electromagnetic energy conversion device |
| CN102116197A (en) * | 2011-01-11 | 2011-07-06 | 北京理工大学 | Linear internal combustion engine-based mixed energy conversion device |
| KR101224192B1 (en) * | 2012-04-06 | 2013-01-21 | 유종훈 | High temperature high pressure valve test device |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868684A (en) * | 2014-03-17 | 2014-06-18 | 台州德尔福汽车部件有限公司 | Fatigue test device for VVT (Variable Valve Timing) engine piston |
| CN103868684B (en) * | 2014-03-17 | 2019-03-05 | 浙江富杰德汽车***有限公司 | A kind of fatigue experimental device of VVT engine piston |
| CN103994879A (en) * | 2014-04-18 | 2014-08-20 | 中国北方发动机研究所(天津) | Piston thermal fatigue test apparatus |
| CN103994881A (en) * | 2014-04-18 | 2014-08-20 | 中国北方发动机研究所(天津) | Piston oscillation oil chamber test simulation apparatus |
| RU2560852C1 (en) * | 2014-09-25 | 2015-08-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный авиационный технический университет" | Test bench of thermal state of pistons of two-stroke internal combustion engines |
| CN104776999B (en) * | 2015-03-27 | 2017-08-11 | 中国北方发动机研究所(天津) | A kind of engine combines piston machine fatigue experimental device |
| CN104776999A (en) * | 2015-03-27 | 2015-07-15 | 中国北方发动机研究所(天津) | Mechanical fatigue test device for combined piston of engine |
| CN105067269A (en) * | 2015-07-30 | 2015-11-18 | 湖南江滨机器（集团）有限责任公司 | Piston test apparatus |
| CN105067269B (en) * | 2015-07-30 | 2018-01-26 | 湖南江滨机器（集团）有限责任公司 | A kind of piston testing apparatus |
| CN105300715A (en) * | 2015-10-26 | 2016-02-03 | 中国科学院理化技术研究所 | Regenerative heat engine performance testing device |
| CN105300715B (en) * | 2015-10-26 | 2017-09-19 | 中国科学院理化技术研究所 | Regenerative heat engine performance testing device |
| CN105588721A (en) * | 2015-12-14 | 2016-05-18 | 中国北方发动机研究所(天津) | Closed heating system of heat transfer test stand for oscillating oil chamber of engine piston |
| CN105588721B (en) * | 2015-12-14 | 2018-05-04 | 中国北方发动机研究所(天津) | A kind of engine piston shakes the closed heating system of oil pocket Experimental Study of Heat Transfer platform |
| CN110529442A (en) * | 2019-08-26 | 2019-12-03 | 哈尔滨工程大学 | Hydraulic system matched with piston machine fatigue test board |
| CN113848064A (en) * | 2021-08-17 | 2021-12-28 | 蓝箭航天技术有限公司 | Core machine test verification method and device |
| CN113848064B (en) * | 2021-08-17 | 2024-03-26 | 蓝箭航天技术有限公司 | Core machine test verification method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103604592B (en) | 2016-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103604592B (en) | Engine piston heat-mechanical load fatigue test system | |
| CN103644151B (en) | The test bed hydraulic control system of energy-conservation low impact hydraulic cylinder | |
| CN102866007B (en) | A kind of cylinder head fatigue test device and test method | |
| CA2759121C (en) | New reciprocating machines and other devices | |
| CN101793606B (en) | Machine-heating load fatigue test device of engine cylinder head | |
| CN102829962A (en) | Quick wear test device of engine valve seat ring | |
| Jia et al. | Disturbance analysis of a free-piston engine generator using a validated fast-response numerical model | |
| CN103234739A (en) | Apparatus and method for testing thermal fatigue of cylinder covers | |
| CN103939421A (en) | Fatigue test method and device used for hydraulic cylinder | |
| Ye et al. | Transient flow performance and heat transfer characteristic in the cylinder of hydraulic driving piston hydrogen compressor during compression stroke | |
| CN204458031U (en) | Energy-conservation one-dimensional internal-combustion engine | |
| CN202939009U (en) | Device for high-low temperature high humidity dynamic cyclic fatigue test of gas spring | |
| KR20170002953A (en) | Test equipment for high pressure pump | |
| CN201653699U (en) | Mechanical-thermal load coupling fatigue tester of engine cylinder head | |
| CN109372824B (en) | Electromagnetic reversing valve energy-saving type ultrahigh voltage pulse test bed | |
| CA2705856A1 (en) | Thermohydraulic method for increasing the pressure of diverse working fluids and application thereof | |
| CN210240183U (en) | Energy-saving ultrahigh-pressure pulse test bed for electromagnetic directional valve | |
| CN102340976B (en) | Electric appliance cabinet heat-dissipating device | |
| CN211258826U (en) | Oilless aerodynamic engine | |
| CN203488275U (en) | Composite gas supply system of engine | |
| CN102562256A (en) | Intelligent internal combustion engine | |
| CN104634577A (en) | Exhaust valve testing device for high-power marine diesel engine | |
| CN202417723U (en) | Intelligent internal combustion engine | |
| CN204405333U (en) | A kind of large-power marine diesel engines vent valve test unit | |
| CN112595620B (en) | Cold and hot impact test box and test method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20161118 |